Wisconsin's colonial waterbirds

Colonial waterbirds are just that—birds that nest in colonies or groups. Nesting colonies may consist of only a few pairs to a few thousand pairs of birds. Wisconsin is home to 20 species of colonial waterbirds.

American White Pelican

Black-crowned Night-Heron

Black Tern

Bonaparte's Gull

Caspian Tern

Cattle Egret

Common Tern

Double-crested Cormorant

Eared Grebe

Forster's Tern

Great Black-backed Gull

Great Blue Heron

Great Egret

Green Heron

Herring Gull

Little Gull

Ring-billed Gull

Snowy Egret

Western Grebe

Yellow-crowned Night-Heron

The Official Internet site for the Wisconsin Department of Natural Resources